public class Main {

  public static void main(String[] args) {

    // Represent characters from their unicode code points

    System.out.printf("%c%c%c%c%c%n", 72, 101, 108, 108, 111);

    // Force unicode characters to uppercase

    System.out.printf("%C%C%C%C%C", 72, 101, 108, 108, 111);

  }

}

​